My ringtone is Grinning Mouths by Isis, my text tone is Threshold of Transformation by Isis too. I went on a bit of a spree after I heard they broke up; my way of dealing with it I guess. In the past I've had Stargazer by Nightwise, Icarus Lives! by Periphery (just for that awesome opening riff), Solarburn by Alchemist, and a whole host of other things.

It was the setting. The store was quiet and I was standing right next to the guy. It's just downright silly to have that as a ring tone pop out of nowhere. There was no preparation, it was just "boom" super chaotic death metal with a funny howling vocalist.

Occasionally I like to put the grand conjuration on my ringtone... You know... The part where he just stars growling "THEEEEE GRAAAAAAND COOOONJUUUUUUURAAAAAAAATIOOOOOON". but for the most part I just use the breakdownish part from foam born b a decade of statues by btbam